This is the 12032nd most frequent German word.
tupperware
"Tupperware" in German refers to plastic food storage containers, often used generically for any brand.
In this sentence, 'Tupperware' is used as a noun representing a type of food storage container.
Ich bewahre mein Mittagessen in der Tupperware auf.
I store my lunch in the Tupperware.
Here, 'Tupperware' refers to a collective category of storage containers owned by the mother.
Die Tupperware meiner Mutter ist immer sauber und ordentlich.
My mother's Tupperware is always clean and organized.
In this sentence, 'Tupperware' is used generically to describe any container of the mentioned type.